Publications by authors named "Hongfei Ji"

Surface electromyography (sEMG) signals are electrical signals released by muscles during movement, which can directly reflect the muscle conditions during various actions. When a series of continuous static actions are connected along the temporal axis, a sequential action is formed, which is more aligned with people's intuitive understanding of real-life movements. The signals acquired during sequential actions are known as sequential sEMG signals, including an additional dimension of sequence, embodying richer features compared to static sEMG signals.

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The integration of EEG signals and deep learning methods is emerging as an effective approach for brain fatigue detection, particularly utilizing Graph Neural Networks(GNNs) that excel in capturing complex electrode relationships. A significant challenge within GNNs is the construction of an effective adjacency matrix that enhances spatial information learning. Concurrently, electrode aggregation in EEG has emerged as a pivotal area of research.

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The gene is a key gene in the vitamin B6 synthesis pathway, playing a crucial role in plant growth, development, and stress tolerance. To explore the family characteristics of the gene in () and its regulatory function under waterlogging stress, this study used five genes from Arabidopsis thaliana as the basis for sequence analysis. Thirteen, eight, and six genes were identified in , (), and (), respectively.

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polysaccharide (CPP) and rare element selenium (Se) have been proved to exert various biological activities, and our previous study demonstrated that selenium nanoparticles modified with CPP (CPP-SeNPs) possessed significantly enhanced tumor cytotoxicity in vitro. This study aimed to investigated the inhibitory effects of CPP-SeNPs complex on H22 solid tumors via immune enhancement. In this study, the H22 tumor-bearing mice model was constructed, and the potential mechanisms of CPP-SeNPs antitumor effects were further explored by evaluating cytokines expression levels, immune cells activities and tumor cells apoptotic indicators in each group.

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Throughout the animal kingdom, several members of the basic helix-loop-helix (bHLH) family act as proneural genes during early steps of nervous system development. Roles of bHLH genes in specifying terminal differentiation of postmitotic neurons have been less extensively studied. We analyze here the function of 5 Caenorhabditis elegans bHLH genes, falling into 3 phylogenetically conserved subfamilies, which are continuously expressed in a very small number of postmitotic neurons in the central nervous system.

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Unlabelled: Background glycolipids (DOG), often left as residues after hot water extraction for polysaccharide production, are often discarded.

Methods: This study investigates the optimal extraction of DOG using response surface methodology, focusing on liquid-solid ratios, ethanol concentrations, extraction temperatures, and extraction times, while preliminarily analyzing DOG's structural properties. Additionally, the differences in antioxidant effects between DOG and ascorbic acid based on intestinal flora metabolism were further evaluated.

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The integrity of wellbores is essential for the safe and efficient operation of drilling activities. Cement plays a critical role in this process, serving as a primary barrier that isolates the casing from the surrounding formation. To ensure the proper application of cement in wells, a thorough understanding of its mechanical properties is essential.

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Article Synopsis
  • * A two-sample Mendelian randomization analysis was conducted using data from genome-wide association studies to investigate these causal relationships, yielding 27 identified connections between 23 types of gut microbiota and various regions of the adrenal gland.
  • * Notable findings include the identification of Sellimonas, which enhances adrenal cortex function, while other bacteria like Parasutterella and Sutterella affect different adrenal areas; this research highlights the gut-microbiota-brain connection and has implications for diagnosing and treating adrenal diseases.
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  • Researchers created a new automated system to study the behavior of C. elegans, a type of nematode, which allows for the analysis of 96 worms simultaneously using high-resolution imaging.
  • The system tracks and quantifies various behaviors, such as locomotion and egg-laying, by applying computer vision techniques.
  • Findings revealed that serotonin affects C. elegans behavior, showing that reduced movement occurs before egg-laying and that specific serotonin receptors play important roles in this process, making the system valuable for further behavioral research.
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Throughout the animal kingdom, several members of the basic helix-loop-helix (bHLH) family act as proneural genes during early steps of nervous system development. Roles of bHLH genes in specifying terminal differentiation of postmitotic neurons have been less extensively studied. We analyze here the function of five bHLH genes, falling into three phylogenetically conserved subfamilies, which are continuously expressed in a very small number of postmitotic neurons in the central nervous system.

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  • A novel electrochemiluminescence (ECL) sensor was created for detecting 4-nitrophenol (4-NP) in drinking water using molecular imprinting technology.
  • The sensor combines a specially synthesized velvet-like graphitic carbon nitride with a molecularly imprinted polymer that specifically recognizes 4-NP, achieving a wide detection range and a low detection limit.
  • Testing showed the sensor's high accuracy and precision when applied to real drinking water samples, demonstrating its potential as a reliable method for monitoring 4-NP levels.
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An animal's locomotor rate is an important indicator of its motility. In studies of the nematode Caenorhabditis elegans (C. elegans), assays of the frequency of body bending waves have often been used to discern the effects of mutations, drugs, or aging.

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  • * The study reveals that coordination of polycyclic aromatic hydrocarbons to (2-phenylpyridine)(CO)Ru can form a novel bis-polyaryl phenylpyridine (BPP) Ru complex via specific chemical strategies, enhancing its functional capabilities.
  • * Notably, the anthracene-derivatized BPP Ru complex (BPP-Ant) demonstrates superior electrochemiluminescence performance, achieving 1.6 times higher quantum efficiency compared to the standard Ru(bpy
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Salt stress is a well-known abiotic constraint that hampers crop productivity, affecting more than 424 million hectares of topsoil worldwide. Applying plant growth regulators externally has proven effective in enhancing crop resilience to salt stress. Previous metabolomics studies revealed an accumulation of Valine-Threonine-Isoleucine-Aspartic acid (VTID) in salt-stressed maize seedlings, suggesting its potential to assist maize adaptation to salt stress.

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Assays of behavior in model organisms play an important role in genetic screens, drug testing, and the elucidation of gene-behavior relationships. We have developed an automated, high-throughput imaging and analysis method for assaying behaviors of the nematode . We use high-resolution optical imaging to longitudinally record the behaviors of 96 animals at a time in multi-well plates, and computer vision software to quantify the animals' locomotor activity, behavioral states, and egg laying events.

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As a representative of the fourth-generation light sources, the High Energy Photon Source (HEPS) in Beijing, China, utilizes a multi-bend achromat lattice to obtain an approximately 100 times emittance reduction compared with third-generation light sources. New technologies bring new challenges to operate the storage ring. In order to meet the beam commissioning requirements of HEPS, a new framework for the development of high-level applications (HLAs) has been created.

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An animal's locomotor rate is an important indicator of its motility. In studies of the nematode C. elegans, assays of the frequency of body bending waves have often been used to discern the effects of mutations, drugs, or aging.

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Diabetic nephropathy (DN) is a common diabetic complication. Studies show that mitophagy inhibition induced-ferroptosis plays a crucial role in DN progression. UHRF1 is associated with mitophagy and is highly expression in DN patients, however, the effect of UHRF1 on DN is still unclear.

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The nematode is one of the most widely studied organisms in biology due to its small size, rapid life cycle, and manipulable genetics. Research with depends on labor-intensive and time-consuming manual procedures, imposing a major bottleneck for many studies, especially for those involving large numbers of animals. Here, we describe a general-purpose tool, WormPicker, a robotic system capable of performing complex genetic manipulations and other tasks by imaging, phenotyping, and transferring on standard agar media.

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  • A brain-computer interface (BCI) using EEG signals creates a direct connection between the brain and the external environment, which can be challenging for stroke patients who need custom calibration.
  • This study introduces a subject-independent BCI system that minimizes the need for pre-calibration, allowing new users to quickly access the technology.
  • The proposed hybrid neural network framework utilizes a filter bank generative adversarial network (FBGAN) and a convolutional recurrent network (CRNN-DF) for motor imagery task recognition, achieving an improved classification accuracy of 72.74%, outperforming existing methods.
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  • The study investigates how the roundworm adapts its movement based on feedback about its body posture, specifically how it controls bending in its midbody and anterior.
  • Researchers found that the worm can adjust its anterior bending based on changes in midbody curvature, utilizing a neural circuit involving dopamine and neuropeptides for this compensatory response.
  • The findings suggest that proprioception interacts with motor control mechanisms, which may be similar across different animal species, enhancing overall locomotor efficiency.
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Introduction: Brain-computer interfaces (BCIs) have the potential in providing neurofeedback for stroke patients to improve motor rehabilitation. However, current BCIs often only detect general motor intentions and lack the precise information needed for complex movement execution, mainly due to insufficient movement execution features in EEG signals.

Methods: This paper presents a sequential learning model incorporating a Graph Isomorphic Network (GIN) that processes a sequence of graph-structured data derived from EEG and EMG signals.

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Background: Lung adenocarcinoma (LUAD) is the most common type of non-small cell lung cancer (NSCLC) with poor survival in advanced stage. Nowadays the rate of nonsmoking patients has dramatically increased and may be associated with the presence of driver mutations. Better understanding of the mutation profile data of nonsmoking LUAD patients are critical to predict survival and provide greater benefits to more patients.

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There is increasing evidence that the crosstalk between podocytes and glomerular endothelial cells (GECs) exacerbates the progression of diabetic kidney disease (DKD). Here, we investigated the underlying role of SUMO specific peptidase 6 (SENP6) in this crosstalk. In the diabetic mice, SENP6 was decreased in glomerular tissues and its knockdown further exacerbated glomerular filtration barrier injury.

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CD5+ diffuse large B-cell lymphoma (DLBCL), as a significant heterogeneity category of DLBCL, is reflected in both the molecular biological and genetic levels, which in turn induces ever-changing clinical manifestations, and what mediates tumor survival mechanisms are still unclear. This study aimed to predict the potential hub genes in CD5+ DLBCL. A total of 622 patients with DLBCL diagnosed between 2005 and 2019 were included.

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